Luis Aragonés’s research while affiliated with University of Alicante and other places

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Publications (4)


Nature-Based Approaches to Protect the Shoreline in Urban Environments: The Case of Benidorm (Spain)
  • Chapter

September 2024

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11 Reads

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Luis Aragonés

Erosion is becoming one of the biggest problems affecting coastlines around the world. The lack of sediment supply, the increase in storms intensity and sea level rise are behind the continuous damage that affects the coast, especially in urban areas. In this study, a review of solutions has been carried out in various parts of the world to mitigate the unwanted effects of erosion in urban environments, with special emphasis on the city of Benidorm (Spain). Benidorm is an international tourist destination, whose shoreline is no exception to the effects of climate change, with a greater storms intensity that causes continuous flooding, both on the beach berm and on the promenade. For this reason, the construction of an artificial dune parallel to the coastline is proposed in order to contain the strength of the waves and the storm surge. The dune will be made up of a coarser sand size inside, favoring the drainage of the dune and being able to mix with the sand from the beach once it is destroyed by the strong waves, having to be rebuilt after the passage of the storm. Low vegetation will be planted on this dune to prevent part of the sand from ending up deposited on the promenade, also minimizing the visual impact. The solution proposed here to contain the flood level can be exported to other parts of the world, forming part of the catalog of nature-based solutions that the coastal engineer must have for proper management of the shoreline.


Nature-based solutions on the coast in face of climate change: The case of Benidorm (Spain)
  • Article
  • Full-text available

February 2024

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90 Reads

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7 Citations

Urban Climate

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The increase in anthropic activities and floods of coastal and river origin put the proper functioning of coastal cities at risk. Benidorm (Spain), an international tourist destination, is no exception to the effects of climate change. Maritime storms intensified, with an increase in wave height by 61% in the last 10 years. Likewise, changes in atmospheric circulation patterns have maximized the irregularity and torrentiality of rainfall in the study area, finding that 2 of the 3 years with the highest number of days of daily precipitation >30 mm have occurred in recent years (2017 and 2019). All these changes will accelerate the beach erosion process. Therefore, it was necessary to act, implementing natural solutions that increase the resilience of the coastal city. The innovative construction of a vegetated urban dune parallel to the promenade was proposed to protect it from the 3 m flood level during the most unfavourable maritime storm. The dune must favour the drainage of sea water and be compatible with the recreational activities carried out in its surroundings. The solutions proposed here are a recommendation so that Public Administrations in other parts of the world can design their climate adaptation plans using nature-based solutions.

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Analysis of the suitability of marble waste for beach nourishment

August 2022

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34 Reads

Marine Georesources and Geotechnology

Marble waste, as a subproduct of the exploitation of marble quarries, could be reused as a replacement for the scarce sand sediment supply for beach nourishment. This work studied the suitability of 4 different types of marble (Bateig, Ivory Cream, Imperial Brown and Niwala). The method consisted of generating 3 samples for each type of marble and preparing them (i) with jaw crusher and D50 = 0.692 mm; (ii) with jaw crusher and D50 = 0.301 mm; and (iii) with ball mill and D50 = 0.268 mm. These samples were analysed using the accelerated particle wear test, and the mineralogy and morphology of the particles were studied using X-ray diffraction and Scanning electron microscopy. Results indicate that if the particle size is larger than 0.4 mm, durability increases between 2 and 4 times compared to a usual sand sample. The jaw crusher generates a smaller number of fractures to the particles than the ball mill, increasing the durability of the sample. If these criteria are followed, marble wastes can be used in beach nourishment, becoming a circular economy asset, alleviating the adverse environmental impact, saving resources and energy and reducing the total cost of nourishments.


Causes of the different behaviour against erosion: Study case of the Benidorm Beaches (1956–2021)

June 2022

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91 Reads

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15 Citations

Marine Georesources and Geotechnology

Coastal erosion is a natural phenomenon that is becoming a growing problem along coastlines around the world. In this research, the evolution of two beaches located in Benidorm (Spain) has been studied: Poniente Beach and Levante Beach. Both have similar characteristics, but present a different morphological behaviour. An analysis of shoreline evolution has been carried out using aerial images. Then, waves and incident storms were studied and, finally, a sedimentological analysis was performed. From the results obtained, the eastern zone of Poniente Beach presents higher rates of erosion than the western zone. This erosion trend disappeared in the last analysed period due to a change in the incoming wave regime. A decrease in the frequency of waves coming from the east caused the erosion and tilting suffered by this beach. In Levante Beach, the intensity of the waves was reduced, making erosion rates lower. Furthermore, important differences were found from the sedimentological study, such as the lack of homogeneity in sediment grain sizes and a worse wear behaviour on Poniente Beach compared to Levante Beach, which means that these two beaches behave differently facing erosion. This accurate knowledge of the factors mentioned will provide adequate tools for its future management.

Citations (2)


... The scale o coastal risk management is thereore a key issue. NBS should be implemented across a watershed-city-coast continuum to avoid perverse eects (Normand and Heggy, 2024;Salata et al., 2022;Toledo et al., 2024). ...

Reference:

The concept of 'nature-based solutions' applied to urban coastal risks: A bibliometric and content analysis review
Nature-based solutions on the coast in face of climate change: The case of Benidorm (Spain)

Urban Climate

... Platja de Ponent Beach is a 3100 m-long crescentic sandy beach delimited by rocky cliffs (Fig. 4). The Ponent Beach is isolated from the neighbouring Llevant Beach and there is almost no longshore transport into this coastal sector 46 . ...

Causes of the different behaviour against erosion: Study case of the Benidorm Beaches (1956–2021)

Marine Georesources and Geotechnology